After the infiltration of precipitation,it will make the slippery band soil hydrate,turn into clay,and cause the suction of the bas.

• 降水入渗后使滑带土水化、泥化,基质吸力显著降低,抗剪强度下降,导致滑坡稳定性降低、滑移,是诱发滑坡变形复活的主要作用机理。